Tag Archives: caterpillar submarine

By David Crane defrev (at) gmail (dot) com June 16, 2009 It looks like the whole metamaterial/negative-index material movement just got another shot in the arm with the development of an "acoustic metamaterial lens" that can theoretically create an acoustic/sonic "invisibility cloak" a.k.a. "cloak of silence" capable of hiding military submarines from enemy detection. DefenseReview first reported on metamaterials a.k.a. negative-index ... Read More »